Application of MRI PROPELLER Technology in Brain Artifacts Reduction
- VernacularTitle:螺旋桨扫描技术在消除头部MRI伪影的应用
- Author:
Qiongying MA
;
Yueyong QI
;
Shuhua DAI
;
Hua YANG
;
Tongsheng SHU
;
Taiping ZHANG
- Publication Type:Journal Article
- Keywords:
PROPELLER;
MRI;
motion artifacts;
susceptibility artifacts
- From:
Chinese Medical Equipment Journal
2003;0(12):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the value of Periodically Rotated Overlapping Parallel Lines Enhanced Reconstruction (PROPELLER) in omitting the motion and susceptibility artifacts in head MRI. Methods Thirty nine cases of restless patients and eighteen cases with fixed metal artificial tooth underwent head MRI using T2WI or DWI with PROPELLER during April and Nov. in 2006 were analyzed respectively. The PROPELLER images and common MRI images were compared. Results The common images of 39 restless patients were not suitable to diagnosis because of moving artifact and pure imaging quality, while the PROPELLER T2WI images eliminate the artifact obviously and display the lesion clearly. Susceptibility artifacts were found in 18 patients with artificial tooth in common MRI images, and the artifacts were almost not found in PROPELLER DWI images and so satisfied the need of diagnoses. Conclusion PROPELLER T2WI and DWI can remove significantly the motion and susceptibility artifacts, and so acquire images of high resolution, low artifacts, and high quality to satisfy the need of diagnoses.
